Thaum koj hnov Stellite 20, xav li cas? Rau ntau tus neeg, txawm tias qee qhov hauv kev lag luam, nws tsuas yog lwm qhov nyuaj lossis hnav-resistant cobalt alloy. Lawv rub nws nrog Stellite 6 lossis 12. Qhov ntawd yog qhov ua yuam kev thawj zaug. Nws yog ib tug tsiaj nyaum txawv kiag li. Kuv tus kheej qhov kev xav thaum ntxov yog tias nws cov ntsiab lus siab chromium thiab tungsten tsuas yog ua rau nws nyuaj rau kev puas tsuaj loj. Coj ob peb qhov ua tsis tiav hauv ntiaj teb kom nkag siab txog nws qhov niche tiag tiag yog qhov uas koj xav tau qhov nyuaj, yog, tab sis kuj tseem muaj kev sib ntaus sib tua tiv thaiv qee yam kev tawm tsam uas yuav noj lwm qib ciaj sia. Nws tsis yog ib qho kev daws teeb meem thoob ntiaj teb, thiab kho nws zoo li ib qho yog txoj hauv kev ceev kom hlawv nyiaj txiag.
Cov khoom pleev xim thiab vim li cas nws ntxias tib neeg
Saib cov nominal muaj pes tsawg leeg: kwv yees li 50% Cobalt, 30% Chromium, 4.5% Tungsten, 1% Carbon. Rau lub qhov muag tsis tau kawm, nws nyeem zoo li cov qauv ntawm Stellite classic. Dab ntxwg nyoog yog nyob rau hauv qhov sib npaug thiab cov ntsiab lus me. Qhov Cr qib yog ntuj-siab rau koob. Nws thawb cov hlau mus rau hauv ib cheeb tsam uas nws tus cwj pwm passivation hauv oxidizing acids hloov. Kuv nco qab txog qhov project rau lub tes tsho tshuaj lom neeg lub tes tsho uas cov spec nyuam qhuav hais tias cobalt alloy rau hnav thiab tshuaj lom neeg. Tus tsim qauv mus nrog tus qauv Stellite 6 overlay. Nws kav li peb lub hlis ua ntej pitting tuav hauv ib puag ncig nitric acid. Kev tshuaj xyuas tom qab kev tuag taw qhia peb mus rau Stellite 20. Tus yuam sij tsis yog hardness xwb; Nws yog qhov ntom ntom, chromium-nplua nuj oxide txheej uas tsim thiab tuav hauv cov xwm txheej ntawd.
Qhov no yog qhov chaw xaiv cov khoom siv dav dav ua tsis tau koj. Lawv yuav sau ib pawg ntawm cov alloys rau corrosion thiab hnav, tab sis qhov corrosion tsis dhau. Puas yog sulfuric, hydrochloric, nitric, lossis slurry nrog chlorides? Stellite 20 ci hauv oxidizing media. Hauv kev txo cov acids? Tsis ntau. Koj yuav tsum paub tus yeeb ncuab tiag. Kuv kawm qhov no los ntawm kev sim siab nrog cov hniav sib tov hauv cov nroj tsuag phosphoric acid. Ib puag ncig muaj cov kab mob fluorides. Peb siv Stellite 20, thiab thaum nws tawm tsam qhov kev xeb dav dav zoo dua li nws cov neeg ua ntej, peb pom qhov hnav tsis tau zoo. Cov fluorides tau undercutting txheej tiv thaiv. Nws yog ib feem yeej tab sis hais txog qhov xav tau rau qhov tshwj xeeb tshaj plaws.
Lwm qhov kev saib xyuas yog nws cov machinability nyob rau hauv daim ntawv wrought, los yog theej, qhov tsis muaj. Nws yog feem ntau muab los ua cam khwb cia lossis hmoov rau vuam. Yog tias koj xav tias koj yuav tau txais cov khoom lag luam bar thiab tig nws zoo li 316 stainless, tsis nco qab nws. Carbide network yog kev phem ntawm cov cuab yeej. Peb koom tes nrog cov chaw tsim khoom thiab cov khw muag khoom uas tau txais qhov no. Zoo li Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), uas peb tau muab cov khoom pov tseg los ntawm. Lawv twb nyob rau hauv casting thiab CNC machining tau ntau xyoo lawm, thiab lawv cov txheej txheem sau ntawv rau alloys zoo li no ib txwm hais txog pre-hardened lub xeev machining nrog nruj setups thiab tej cuab yeej geometry. Nws tsis yog ib qho kev pabcuam uas lawv muab; nws yog ib txuj kev xyaum. Koj tuaj yeem nrhiav lawv txoj hauv kev kom ntxaws ntawm lawv qhov chaw ntawm https://www.tsingtaocnc.com. Lawv tsis yog muag cov khoom xwb; lawv to taub qhov fabrication mob taub hau.
Application Realities: Kev vam meej thiab nyob ze-ntxhais
Kuv pom qhov twg ua haujlwm meej? Valve trim hauv kev pabcuam nitric acid yog phau ntawv. Tsis yog lub rooj zaum xwb, tab sis lub ntsaws stems thiab qhia qhov chaw uas koj muaj kev sib txuas mus tas li hauv qhov kub, oxidizing cua. Ib tus neeg siv khoom muaj teeb meem mob galling thiab corrosion nrog txawm tias qib siab stainless hlau. Hloov mus rau Stellite 20 trim ncua sij hawm khiav los ntawm ib qho ntawm plaub. Tab sis lub installation yog qhov tseem ceeb. Lub substrate yuav tsum tau pre-rhuab, lub weld overlay tswj kom tsis txhob dilution thiab cracking, thiab ces tiav hauv av. Nws tsis yog ib qho kev hloov pauv; nws yog ib tug txheej txheem overhaul.
Lwm daim ntawv thov khoom yog nyob rau hauv tej hom tshuaj tsuag nozzles rau aggressive tshuaj slurries. Kev sib xyaw ua ke ntawm cov khoom siv hluav taws xob siab thiab kev cuam tshuam tshuaj lom neeg xav tau cov cuab yeej tshwj xeeb no sib xyaw. Peb siv nws rau nozzles nyob rau hauv ib tug ntxhia ua nroj tsuag tuav ib tug acidic, abrasive slurry. Yav dhau los aluminium oxide ceramic nozzles tau chipping. Lub Stellite 20 cam khwb cia nozzles hnav tusyees thiab kwv yees, tso cai rau kev saib xyuas lub sijhawm tsis yog kev kaw thaum muaj xwm txheej ceev. Tus nqi siab dua ua ntej, tab sis tag nrho cov nqi ntawm cov tswv cuab poob.
Tam sim no rau ib tug nyob ze-ntxhi. Ib daim ntawv zeb xav tau tus kws kho mob hniav rau lub tshuab ziab khaub ncaws, ntsib cov cua sov thiab qee cov kua qaub. Lawv hais rau Stellite 20 raws li daim ntawv teev cov ntaub ntawv qhov kev pabcuam kub siab tshaj plaws. Peb muaj kev tsis ntseeg txog thermal qaug zog. Cov hniav tau tsim, ntsia, thiab ua tau zoo ntawm hnav rau li yim lub hlis. Tom qab ntawd nws tawg, tsis yog los ntawm hnav, tab sis los ntawm thermal cycling kev nyuaj siab. Zaj lus qhia? Stellite 20 muaj zoo kub hardness, tab sis nws thermal conductivity thiab expansion coefficient tsis yog khawv koob. Rau cyclic thermal shock, lwm qib cobalt lossis txawm tias nickel-based alloys yuav zoo dua. Peb yuav tsum tau thawb rov qab nyuaj dua ntawm kev tshuaj xyuas daim ntawv thov.
Casting thiab Machining Hurdle
Qhov no yog lub tswv yim phab ntsa ntau ntaus. Tau txais lub suab casting ntawm Stellite 20 dawb ntawm shrinkage porosity thiab kub kua muag tsis yog tsis tseem ceeb. Cov ntsiab lus siab alloy cuam tshuam rau fluidity thiab solidification. Nws xav tau cov rooj vag meej thiab tsim kev nce qib. Kuv tau pom qhov zoo nkauj tiav-tshuab ua haujlwm tsis zoo hauv kev pabcuam vim tias qhov chaw subsurface shrinkage kab noj hniav dhau los ua ib qho kev ntxhov siab thiab pib tawg. Qhov no yog vim li cas kev ua hauj lwm nrog ib tug paub txog foundry yog tsis-negotiable.
Qhov no rov qab rau cov kws tshaj lij xws li QSY. Lawv 30 xyoo nyob rau hauv plhaub molding thiab peev casting rau cov alloys tshwj xeeb txhais tau tias lawv yuav tau nchuav ntau pua ntawm cov khoom siv zoo sib xws. Qhov kev paub ntawd txhais ua pwm tsim thiab cov txheej txheem uas ua rau muaj kev ncaj ncees. Thaum koj tab tom cuam tshuam nrog cov khoom kim thiab qhov tseem ceeb, koj tsis yog yuav cov hlau xwb; koj tab tom yuav lub foundry cov txheej txheem kev paub ua kom cov hlau ua.
Tom qab-casting, machining yog qhov kev sib tw tom ntej. Raws li tau hais, nws nyuaj. Kev sib tsoo feem ntau nyiam dua tig. Thaum CNC milling yuav tsum tau rau cov geometry complex, txhua yam tseem ceeb: tshuab rigidity, carbide qib, pub thiab ceev, coolant daim ntawv thov. Ib qho kev sib tham yuav cuam tshuam ib qho kev txiav. Kuv nco qab ib pawg ntawm kev cai twj tso kua mis hnav daim hlau peb tau machined. Thawj lub khw, lub khw ua haujlwm dav dav, ua kom puas 3 daim ua ntej muab tso tseg. Lub khw thib ob, uas tshwj xeeb hauv superalloys, nailed nws. Lawv zais cia? Kev nrawm nrawm, siab pub tus nqi rau ib tus hniav, thiab huab cua moj tej tawg es tsis txhob siv dej nyab kom tsis txhob muaj cua sov ntawm lub taub hau carbide. Nws yog cov tsis hais lus, kev cob qhia-qib cov ntsiab lus uas cais kev ua tiav ntawm cov khoom seem.
Kev tsim khoom thiab Kev Sib Tw Sib Tw
Koj yuav pom cov neeg muag khoom muab Stellite 20 sib npaug lossis UNS R30605. Thaum UNS tus lej ntsuas nws, qhov kev thov sib npaug yog qhov txaus ntshai. Cov kev hloov pauv me me hauv kev ua kom yaj (cua yaj piv rau lub tshuab nqus tsev), cov kab ke tswj (sulfur, phosphorus), thiab carbide morphology tuaj yeem cuam tshuam kev ua haujlwm, tshwj xeeb tshaj yog nyob rau hauv corrosion. Rau cov khoom siv tsis tseem ceeb, qhov sib npaug yuav zoo. Rau cov txheej txheem tshuaj lom neeg tseem ceeb, Kuv xav hais kom muaj lub npe nrov, traceable qhov chaw nrog ntawv pov thawj chemistry thiab cov ntawv ceeb toom kev ntsuas.
Qhov no yog lwm qhov laj thawj tsim cov saw hlau tseem ceeb. Ib lub tuam txhab zoo li QSY, uas teev cobalt-based alloys meej meej nyob rau hauv lawv cov khoom siv, yog tsim los muab qhov traceability. Lawv tsis yog brokers xwb; lawv yog cov fabricators uas xav tau cov khoom zoo ib yam los pub lawv tus kheej casting thiab machining txheej txheem. Lawv lub vev xaib, https://www.tsingtaocnc.com, qhia txog lawv lub peev xwm hauv cov hlau tshwj xeeb no, uas qhia txog kev sib sib zog nqus ntawm cov khoom siv ntau dua li cov khoom siv hlau dav dav.
Lub cuab yeej ib txwm raug nqi. Stellite 20 yog kim. Kev ntxias kom nrhiav tau tus pheej yig dua li lwm txoj hauv kev zoo yog qhov loj. Kuv twb raug yuam kom ua. Qee zaum koj tau muaj hmoo; feem ntau koj tau txais kev hu rov qab rau lub hlis tom qab. Kev tsom xam tsis ua hauj lwm feem ntau qhia tau hais tias tsis zoo corrosion kuj lossis hnav tsis tau. Cov kev txuag ntawm cov khoom tau raug tshem tawm kaum zaug dhau los ntawm kev poob qis thiab hloov ua haujlwm. Kuv txoj cai tam sim no yog qhov yooj yim: yog tias daim ntawv thov ua kom ncaj ncees rau Stellite 20, tom qab ntawd ua pov thawj cov qhab nia tsim nyog thiab tus neeg muag khoom tsim nyog. Yog tias cov peev nyiaj tsis tuaj yeem ncav cuag qhov deb, ces peb yuav tsum rov ua haujlwm ua haujlwm ntawm daim ntawv thov rau cov khoom siv nyiaj txiag ntau dua los ntawm qhov pib, lees txais lub neej ua haujlwm luv dua.
Kev xav zaum kawg: Ib tus kws tshaj lij cov cuab yeej
Yog li, qhov twg ua rau peb nrog Stellite 20? Nws yog cov cuab yeej tshwj xeeb. Nws tsis yog koj thawj qhov kev xaiv rau kev puas tsuaj. Nws tsis yog koj thawj qhov kev xaiv rau ntshiab, hnyav corrosion. Nws yog cov lus teb rau qhov nqaim, rau txim rau kev sib tshuam ntawm ob, tshwj xeeb hauv oxidizing ib puag ncig. Nws tus nqi yog qhov loj heev thaum siv kom raug, thiab tus nqi yuam kev thaum nws tsis yog.
Kev paub tsis yog nyob rau hauv cov ntaub ntawv xwb; nws yog nyob rau hauv cov caws pliav ntawm misapplications thiab nyob ntsiag to kev vam meej ntawm zoo meej haum. Nws yog nyob rau hauv kev nkag siab tag nrho cov lus los ntawm lub qhov cub foundry mus rau qhov kawg grind, thiab yuav ua li cas txhua kauj ruam yuav ua tau los yog ua txhaum ib feem ntawm qhov kev ua tau zoo. Qhov ntawd yog qhov sib txawv ntawm kev qhia cov khoom siv thiab ua kom nws ua haujlwm hauv thaj chaw.
Rau txhua tus neeg dhia dej rau hauv ib qhov project uas yuav xav tau, kuv cov lus qhia yog qhov no: txhais cov kev pabcuam ib puag ncig nrog kev ua phem phem - tshuaj, qhov kub thiab txias, kev ua haujlwm, kev mus ncig. Tom qab ntawd, koom nrog koj cov khoom muag thiab cov neeg tsim khoom ua ntej. Tso daim duab tag nrho. Ib tus khub zoo, ib tus nrog kev paub ntev hauv kev casting thiab machining cov khoom siv dag zog zoo li pab pawg ntawm QSY, yuav nug cov lus nug kom raug thiab feem ntau pom qhov muaj feem cuam tshuam rau hauv daim ntawv thov lossis cov txheej txheem tsim ua ntej hlau puas tau nchuav. Qhov kev sib tham ntawd yog thawj kauj ruam thiab muaj txiaj ntsig zoo tshaj plaws hauv kev ua kom Stellite 20 xa tawm ntawm nws cov lus cog tseg.
